dm: gpio: Add DM compatibility to GPIO driver for Davinci

This adds DM_GPIO support for the davinici GPIO driver with
DT support.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index c565ba7..5583b45 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -9,6 +9,7 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <environment.h>
 #include <i2c.h>
 #include <net.h>
@@ -24,6 +25,7 @@
 #include <linux/errno.h>
 #include <hwconfig.h>
 #include <asm/mach-types.h>
+#include <asm/gpio.h>
 
 #ifdef CONFIG_MMC_DAVINCI
 #include <mmc.h>